Wikipedia Abstract

Blackcurrant, with the scientific name Ribes nigrum, is a species of Ribes native to central and northern Europe, and northern Asia. It is widely cultivated commercially and domestically as a temperate fruit crop for its abundant berries. It is less well known in the United States where it has been subject to restrictions as a disease vector for most of the 20th century.

The oil from the seed is added to skin preparations and cosmetics. It is often combined with vitamin E to prevent oxidation;
A yellow dye is obtained from the leaves;
A blue or violet dye is obtained from the fruit;
The leaves are used for vegetable preservation; No more details.